Extraction of Uniform Regions with Minimization of Noise Points Effects

D. Lenger; H Cipovic

doi:10.1117/12.938505

6 April 1987 Extraction of Uniform Regions with Minimization of Noise Points Effects

D. Lenger, H Cipovic

Proceedings Volume 0657, Applications of Artificial Intelligence IV; (1987) https://doi.org/10.1117/12.938505
Event: 1986 International Symposium/Innsbruck, 1986, Innsbruck, Austria

Abstract

The paper describes a sequence of stages which permit the extraction of uniform regions and their presentation by unbroken sequences of edge points with the minimization of noise points effects on a 100 x 100 scene with 16 gray levels. Considering that the method was intended for industrial applications, it includes the elimination of background, in the first step, by employing the threshold calculated from the equalized histogram of the scene. The next step covers the filtering of quantization noise and the noise due to non-uniform illumination of working area, by fast logic clearing. The scene is then ready for extraction of contours of uniform regions, and location of residual structural noise due to inadequate resolution of camera of an emphatic discontinuity in illumination (Ex. shining objects). The final step covers the scene scanning by means of adaptive masks for elimination of structural noise and follower coding of uniform regions in the form of sequences of sucessive connected points. The scene coded in such a method comprizes all information about objects on it, and permits their recovery by employing pattern recognition algorithms.

Citation Download Citation

D. Lenger and H Cipovic "Extraction of Uniform Regions with Minimization of Noise Points Effects", Proc. SPIE 0657, Applications of Artificial Intelligence IV, (6 April 1987); https://doi.org/10.1117/12.938505

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